Ahh....ok. I misunderstood. I thought that you were talking about the trunk weather seal, but you're having a problem with the window seal, if I am looking at what I think I am. How close is the trunk lid in that area? Is it closer than in other parts?
Yeah sorry for the confusion because I didn't know what this was at first either.
It doesn't seem to be attached directly to the glass because I can follow the intact part down the entire rear window with a finger nail under it. Looks like it fills a gap and the metal strip inside gives it strength.
I'm going to talk to the local body shop for repair opinions on Saturday.